Imidazole → (2-Allyl-3-bromo-6-chloro-5-(4-methoxybenzyl)phenoxy)(tert-butyl)dimethylsilane

HRID 576402노트

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HRID 576402 반응식
[CH2:1]([C:4]1[C:9]([Br:10])=[CH:8][C:7]([CH2:11][C:12]2[CH:17]=[CH:16][C:15]([O:18][CH3:19])=[CH:14][CH:13]=2)=[C:6]([Cl:20])[C:5]=1[OH:21])[CH:2]=[CH2:3].[Si:22](Cl)([C:25]([CH3:28])([CH3:27])[CH3:26])([CH3:24])[CH3:23].N1C=CN=C1>CN(C=O)C.CN(C1C=CN=CC=1)C>[CH2:1]([C:4]1[C:9]([Br:10])=[CH:8][C:7]([CH2:11][C:12]2[CH:17]=[CH:16][C:15]([O:18][CH3:19])=[CH:14][CH:13]=2)=[C:6]([Cl:20])[C:5]=1[O:21][Si:22]([C:25]([CH3:28])([CH3:27])[CH3:26])([CH3:24])[CH3:23])[CH:2]=[CH2:3]

참가 물질

6

반응물 3

HCID 795ImidazoleHCID 28928tert-Butyldimethylsilyl chlorideHCID 867140802-Allyl-3-bromo-6-chloro-5-(4-methoxybenzyl)phenol

생성물 1

HCID 86714082(2-Allyl-3-bromo-6-chloro-5-(4-methoxybenzyl)phenoxy)(tert-butyl)dimethylsilane수율 86%

시약·촉매·용매 2

HCID 142844-(Dimethylamino)pyridine촉매HCID 6228Dimethylformamide용매

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온도
50 °C

실험 절차

To a solution of phenol 185 (2.29 g, 6.23 mmol) in DMF (30 mL) were added tert-butyldimethylsilyl chloride (1M in THF, 9.35 mL, 9.35 mmol), imidazole (1.3 g, 18.7 mmol) and catalytic DMAP. The mixture was stirred at 50° C. for 15 hours. The mixture was extracted with EtOAc/aq. 50% NaCl solution (100 mL/500 mL). The organic layer was washed with brine, dried over MgSO4, filtered and concentrated in vacuo. The residue was purified by silica gel column chromatography to provide the product 186 (2.57 g, 86%).

후처리

  1. extractionThe mixture was extracted with EtOAc/aq
  2. washThe organic layer was washed with brine
  3. dry with materialdried over MgSO4
  4. filtrationfiltered
  5. concentrationconcentrated in vacuo
  6. customThe residue was purified by silica gel column chromatography

출처 및 근거

ORD 기록
ord-c8a4503b0bc248c184b56b7f83cd78f5
출처 데이터셋
uspto-grants-2015_05
특허 번호
US09034921B2

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